Welcome to Gaia! ::

Yes. Shellfish. I just found out last year! Funny story....

I worked in a grocery store. I was a produce clerk but was filling in for other departments. I also worked deli, stock, bagging, and then Seafood.

Well, the first day I worked seafood there was a huge sale on lobsters, so I helped the seafood people serve the customers. The next day I devepled a rash on my arm, a big one. I didnt think much of it. I didnt work seafood for awhile and the rash went away. Everytime I worked seafood, the next day I would develp a rash on my arm, each time it would last longer then the previous one. It took me 4 more times working in seafood to realise that I was allergic to the shellfisd I was handling. I know its just shellfish because I could still handle and eat regular fish and have no problem.